scienceSunday, September 20, 2026 at 02:26 PM
UK Plug-in Solar Legalization Leaves Wiring and Inverter Standards Unenforced
UK legalization of plug-in solar removes a permitting barrier but omits enforceable electrical-safety upgrades. Evidence from German field data and domestic wiring surveys indicates elevated arc and islanding risk on older circuits. Mandatory product certification and updated grid codes are required to convert the policy into net safety gain.
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The next credible step is an Ofgem consultation on mandatory type-testing and smart inverter firmware by Q3 2025. Absent that, insurers are expected to introduce excess clauses for properties with unverified plug-in arrays starting 2026.
⚡ Prediction
Ofgem: At least 15 % of 2025 plug-in solar installations will trigger distribution-network complaints within 12 months of first 10 000-unit deployment.
Sources (3)
- [1]Primary Source(https://www.newscientist.com/article/2587873-plug-in-solar-panels-still-have-safety-risks-in-the-uk-despite-legalisation)
- [2]Supporting Source(https://www.gov.uk/government/publications/electricity-safety-quality-and-continuity-regulations-2002)
- [3]Supporting Source(https://www.vde-verlag.de/standards/4105)